thanks a lot... that answers most of my questions
I have a real good 4 core radiator I found out of a 1 ton that Im going to replace the new 3 core radiator I purchased from LMC.
at that time I will also change fans to the 5 or 6 blade fans... will see if I can find the shroud you mentioned
hope to have a system that can run a 180F thermostat and maintain temp in traffic or stop and go in 100F+ weather
again thanks for help... lots of knowledge here